Coupler



FIG. 1 is a front perspective view of the coupler embodying our design;

FIG. 2 is a top plan view of the coupler of FIG. 1;

FIG. 3 is a side elevational view of the coupler as shown in FIG. 1;

FIG. 4 is a right end elevational view of the coupler shown in FIG. 1;

FIG. 5 is an exploded view of the coupler shown in FIG. 1;

FIG. 6 is a side elevational sectional view of the coupler as shown in FIG. 1 taken along section lines 6—6 in FIG. 2;

FIG. 7 is a side elevational sectional view of the coupler as shown in FIG. 1 taken along section lines 7—7 of FIG. 2;

FIG. 8 is a partial perspective view of the slide which is part of the coupler as shown in FIG. 5;

FIG, 9 is a partial top plan view of the coupler as shown in FIG. 5;

FIG. 10 is a partial side elevational view of the slide as shown in FIG. 5;

FIG. 11 is a partial right end elevational view of the slide as shown in FIG. 5;

FIG. 12 is a partial sectional view of the slide as shown in FIG. 5 taken along line 12—12 of FIG. 11; and,

FIG. 13 is a partial end sectional view of the slide as seen in FIG. 5 taken along line 13—13 of FIG. 10. 

We claim the ornamental design for the coupler, as shown and described. 